Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 1 30.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/01/2019   18:22:39   (  68.71, -97.50) 02/01/2019   18:23:50  (  68.62, -96.84)   28.49                71
 02/01/2019   19:13:15   ( -68.30,  70.35) 02/01/2019   19:13:24  ( -68.30,  70.40)    2.14                 9
 02/01/2019   20:03:58   (  68.12,-122.11) 02/01/2019   20:02:52  (  68.12,-122.16)    1.94                66
 02/04/2019   10:39:27   (  68.38,  18.71) 02/04/2019   10:40:23  (  68.36,  18.73)    2.11                56
 02/04/2019   11:30:08   ( -68.24,-173.80) 02/04/2019   11:29:53  ( -68.27,-173.75)    3.39                15
 02/04/2019   12:20:40   (  67.47,  -5.53) 02/04/2019   12:19:31  (  67.53,  -6.96)   61.22                69
 02/07/2019   02:56:20   (  68.32, 134.56) 02/07/2019   02:56:52  (  68.33, 134.57)    1.13                32
 02/07/2019   03:47:01   ( -68.18, -57.95) 02/07/2019   03:46:23  ( -68.18, -57.97)    1.07                38
 02/09/2019   18:22:37   ( -68.87,  82.30) 02/09/2019   18:23:47  ( -68.76,  83.34)   43.27                70
 02/09/2019   19:13:12   (  68.27,-109.60) 02/09/2019   19:13:21  (  68.25,-109.65)    3.15                 9
 02/09/2019   20:03:54   ( -68.18,  57.83) 02/09/2019   20:02:51  ( -68.16,  57.88)    3.21                63
 02/12/2019   10:39:21   ( -68.33,-161.22) 02/12/2019   10:40:23  ( -68.35,-161.29)    3.59                62
 02/12/2019   11:30:05   (  68.21,   6.24) 02/12/2019   11:29:50  (  68.22,   6.20)    1.78                15
 02/12/2019   12:20:38   ( -67.64, 174.27) 02/12/2019   12:19:27  ( -67.74, 173.28)   43.60                71